Are birds really dinosaurs or are they simply related? That’s a question which has gained new life in recent years due to the overwhelming facts that they are pouring in from newly found fossils and research from fossils that have been discovered in the past.
Two groups have formed in the analysis of this question: those who believe birds are a direct result of dinosaurs and people who feel birds and dinosaurs must have had a common ancestor. Determining that view is correct is a matter of opinion based on truth.
The main problem involves using cladistics or phylogenetic systematics to group organisms according to characteristics that they share. If one looks at dinosaur fossils, they may feel that certain characteristics are used for something entirely different than someone else who’s looked at the same fossil.
One cannot talk about dinosaur and bird lineage without mentioning Archaeopteryx. Archaeopteryx thus represents what paleontologists would call a “transitional form” between two major groups of animals, the reptiles (dinosaurs) and birds. For more additional info about Bird protection checkout online websites.
The main difference between the theropods and Archaeopteryx were the long arms of the Archaeopteryx, accommodated as wings, the feathers, and the existence of a wishbone that the theropods didn’t have.
All of these features tie it to birds and its other characteristics tie it into theropods. Opponents of the idea say that the similarities between Archaeopteryx and theropods were because of convergence, with the birdlike dinosaurs emerging in the Cretaceous some 75 million years after Archaeopteryx. Click here for more info about Ball chasing
Additionally, support is gaining that Archaeopteryx wasn’t, in fact, the very first bird, but instead a descendent of an earlier bird ancestor that had developed along a different pathway and really represents an evolutionary dead end.
Two opponents of the “birds are dinosaurs concept” are Alan Feduccia of the University of North Carolina and Larry Martin of the University of Kansas. They believe that birds evolved from some unknown reptile from a time before dinosaurs came to be.